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  1. No Access

    Article

    Polyamines: Emerging Hubs Promoting Drought and Salt Stress Tolerance in Plants

    Environmental stress is increasingly wearing down crop productivity. As a consequence, a major priority of plant research is to get deeper insights on tolerance mechanisms, providing solutions with the generat...

    Miren Sequera-Mutiozabal, Chrystalla Antoniou… in Current Molecular Biology Reports (2017)

  2. No Access

    Article

    The roles of polyamines during the lifespan of plants: from development to stress

    Compelling evidence indicates that free polyamines (PAs) (mainly putrescine, spermidine, spermine, and its isomer thermospermine), some PA conjugates to hydroxycinnamic acids, and the products of PA oxidation ...

    Antonio F. Tiburcio, Teresa Altabella, Marta Bitrián, Rubén Alcázar in Planta (2014)

  3. Article

    Open Access

    Copper-containing amine oxidases contribute to terminal polyamine oxidation in peroxisomes and apoplast of Arabidopsis thaliana

    Polyamines (PAs) are oxidatively deaminated at their primary or secondary amino-groups by copper-containing amine oxidases (CuAOs) or FAD-dependent amine oxidases (PAOs), respectively. Both enzymes have long b...

    Joan Planas-Portell, Marta Gallart, Antonio F Tiburcio… in BMC Plant Biology (2013)

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  4. No Access

    Article

    Polyamines: molecules with regulatory functions in plant abiotic stress tolerance

    Early studies on plant polyamine research pointed to their involvement in responses to different environmental stresses. During the last few years, genetic, transcriptomic and metabolomic approaches have unrav...

    Rubén Alcázar, Teresa Altabella, Francisco Marco, Cristina Bortolotti… in Planta (2010)

  5. No Access

    Article

    Involvement of polyamines in plant response to abiotic stress

    Environmental stresses are the major cause of crop loss worldwide. Polyamines are involved in plant stress responses. However, the precise role(s) of polyamine metabolism in these processes remain ill-defined....

    Rubén Alcázar, Francisco Marco, Juan C. Cuevas, Macarena Patron… in Biotechnology Letters (2006)

  6. No Access

    Article

    Improved plant regeneration in maize callus cultures after pretreatment with dl-alpha-difluoromethylarginine

    The influence of a three-month-long pretreatment with dl-alpha-difluoromethylarginine (DFMA), an irreversible suicide inhibitor of arginine decarboxylase activity (ADC; EC 4.1.1.19), on plant regeneration, protei...

    Antonio F. Tiburcio, Xavier Figueras… in Plant Cell, Tissue and Organ Culture (1991)

  7. No Access

    Article

    Morphogenesis in tobacco subepidermal cells: Putrescine as marker of root differentiation

    We have used the tobacco thin cell layer ‘in vitro’ system to evaluate changes in polyamine titers as correlated with root differentiation and with variations in external pH during culture. We show that root d...

    Antonio F. Tiburcio, Cyrille Amin Gendy… in Plant Cell, Tissue and Organ Culture (1989)

  8. No Access

    Article

    Effect of polyamine biosynthetic inhibitors on alkaloids and organogenesis in tobacco callus cultures

    We studied the effects of inhibitors of ornithine decarboxylase (ODC), arginine decarboxylase (ADC) and spermidine synthase (Spd synthase) on organogenesis and the titers of polyamines (PA) and alkaloids in to...

    Antonio F. Tiburcio, Ravindar Kaur-Sawhney… in Plant Cell, Tissue and Organ Culture (1987)